Triethylamine → tert-butyl 4-(5-cyclopropyl-1-(4-methoxybenzyl)-3-((trimethylsilyl)ethynyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate

HRID 387533노트

반응식

HRID 387533 반응식
[CH:1]1([C:4]2[C:5]([N:23]3[CH2:28][CH2:27][N:26]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:25][CH2:24]3)=[C:6]3[C:12](I)=[N:11][N:10]([CH2:14][C:15]4[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=4)[C:7]3=[N:8][CH:9]=2)[CH2:3][CH2:2]1.C(N(CC)CC)C.[C:43]([Si:45]([CH3:48])([CH3:47])[CH3:46])#[CH:44]>C1COCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH:1]1([C:4]2[C:5]([N:23]3[CH2:28][CH2:27][N:26]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:25][CH2:24]3)=[C:6]3[C:12]([C:44]#[C:43][Si:45]([CH3:48])([CH3:47])[CH3:46])=[N:11][N:10]([CH2:14][C:15]4[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=4)[C:7]3=[N:8][CH:9]=2)[CH2:3][CH2:2]1

참가 물질

6

반응물 3

HCID 8471TriethylamineHCID 66111TrimethylsilylacetyleneHCID 68761344tert-butyl 4-(5-cyclopropyl-3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate

생성물 1

HCID 68769357tert-butyl 4-(5-cyclopropyl-1-(4-methoxybenzyl)-3-((trimethylsilyl)ethynyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate수율 100%

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 8028Tetrahydrofuran용매

실험 절차

tert-Butyl 4-(5-cyclopropyl-3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate (300 mg, 0.5 mmol), Cu(I)I (5 mg, 0.02 mmol), PdCl2(PPh3)2 (18 mg, 0.02 mmol), and triethylamine (0.3 mL, 2.5 mmol) were placed in THF (4 mL) and de-gassed under argon. Ethynyltrimethylsilane (0.2 mL, 1.5 mmol) was then added, and the reaction was stirred at room temperature overnight. The reaction was then concentrated to dryness to give the crude product tert-butyl 4-(5-cyclopropyl-1-(4-methoxybenzyl)-3-((trimethylsilyl)ethynyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate (280 mg, 98% yield).

후처리

  1. customde-gassed under argon
  2. concentrationThe reaction was then concentrated to dryness

출처 및 근거

ORD 기록
ord-c06e9defb64b4dc18989fc1105ea7e9c
출처 데이터셋
uspto-grants-2013_02
특허 번호
US08372842B2

반응 노트

불러오는 중…